Update:
The vet was here and it seems like Kimi's entire digestive tract just shut down. Food was good, housing was good, teeth were checked, there was just no explainable cause. She still had feces in her but a quick sample turned up nothing. Like I feared a foreign object in her body might be the case, if so then there is nothing you can do.
That is the worst case scenario.

Lets not assume that.
For now, what we CAN do is try to get her digestive tract running again. We got a powder to help stimulate her rumen and the vet got her a shot of painkillers to make her feel a bit better. The goal is to get her eating again, if she eats again she will feel a bit better.

While the vet was here we tried to ultrasound Ayumi but the machine had some issues so we are still in the dark about her being pregnant or not.